Roll for rolling-mills



Patented June 29;. 1886.

Invert t 01's i? FIG-3 (No Model.)

T. REED & J. HOLLOWAY.

ROLL FOR ROLLING MILLS. No. 344,403.

FIG-5.

UNrTEn STATES PATENT UEETQE.

THOMAS REED AND JEREMIAH HOLLOXVAY, OF CQVINGTON, KENTUCKY.

ROLL FOR ROLLlNG=lVilLLS.

SPECIFICATION forming part of Letters Patent No. S H AOS, datedApplication filed March 20, 1886.

To aZZ whom it may concern.-

Be it known that we, Tnonas REED and JEREMIAH IIOLLOWAY, both citizensof the United States, residing at Covington, in the county of Kenton,State of Kentucky, have invented certain new and useful Improvements inRolls, of which the following is a specific. tion, reference being hadtherein to the accompanying drawings.

This invention relates to those rolls which are provided with internalchannels for the passage either of air, steam, or water, wherewith thecasting is maintained at any suitable temperature; and the first part ofour improvements comprises a novel arrangement of such channels. Ofthese channels our main or inlet passage occupies the axis of the-rolland is open at one end, but closed at the other end, where a series ofradial or lateral passages communicate with said inlet. These radialpassages lead into an annular chamber, and the latter communicates witha series of return or branch channels running longitudinally of the rolland as near its periphery as the strength of the metal will permit. Bythis arrangement the tempering-currentis first introduced along the axisof the roll, is then dispersed outwardly, and finally escapes throughthe return or discharge passages, as hereinafter more fully described.

The second part of our improvements c011- sists in forming these variouschannels, passages, &e., by a series of connected pipes or tubes, whichpipes are placed in a mold, and the roll is then cast around them, ashereinafter more fully described.

In the annexed drawings, Figure 1 isaside elevation of the aforesaidsystem of connected pipes. Fig. 2 is an enlarged end elevation thereof.Fig. 3 is an axial section of a roll cast around the pipes. Fig. 4: is atransverse section of said roll, taken at the line 6 6 of the precedingillustration. Fig. 5 is an axial section of a modification of ourinvention.

A represents a main pipe or tube open at the end B, butelosed at theopposite end, 0, where. a series of smaller tubes, D, radiate from saidmain pipe. These radial tubes D communicate with a hollow ring orannulus, E, provided with branch pipes F. These branches are aboutparallel with the main pipe June 29,1856.

Serial No. 106,010. (No model.)

A, but somewhat shorter than the latter, and their exposed ends areopen, as seen in Fig. 3. Oft-hesc branches, as many may be used ascircumstances suggest, from eight to twelve being employed for anordinary sized roll. After these pipes have been seeurel y fastenedtogether, they are hung vertically within a suitable mold, and the rollG, (seen in Fig. 3,) is cast around them. As a result of this procedure,the main pipe A occupies an axial position within the roll, while thehollow ring E is located near one end of the same; but the branch pipesF are comparatively near the pe riphery 01' the roll, and the exposedends of said pipes are seen at the end of the latter most remote fromthe hollow ring E. Furthermore, Fig. 4 shows that the metal composingthe roll completely surrounds the ring and the radial arms, therebyrendering the casting as rigid as though it were solid.

After the roll has been properly turned down it isjournaled in a pair ofhousings in the usual manner, and it is at once ready for use as soon asa hose or other suitable connection is coupled to the open end B of pipeA.

If the weather should be very cold, a current of steam or warm air canbe first admitted through the pipe A for the purpose of graduallyheating the roll preparatory to using the same; but as soon as the hotbars, plates, or sheets are passed between the rolls the steam or heatedair can be shut off and cold air or water be discharged through thevarious channels to prevent the casting becoming too highly heated.lVhether hot or cold air or steam or other vapor be employed the actionis the samethat is to say, the air or water first traverses the axialpipe A, then flows through the radial tubes D into thehollow ring E,fromwhich latter it escapes along the branch pipes F, and is finallydischarged at the exposed ends of the latter. It will thus be seen thatthe cooling or warming of the roll first begins at the very axis of thesame, and then proceeds toward its peri phery, thereby rendering theprocess a gradual and uniform operation and preventing the casting frombecoming injured by suddenly changing the temperature of the same.

The above is a description of the preferred construction of our rolls;but it is evident the details may be modified without departing from thespirit of the invention.

An obvious modification is seen in Fig. 5, where all the pipes, 800.,are omitted, and channels A, D, E, and F are substituted therefor, saidchannels being formed by casting the roll around cores whichlatter aresubsequently removed.

We claim as our invention- 1. A roll provided with anaxialinlet-channel, A, open. at one end, but closed at the other end,where a series of passages, D, proceed from said inlet and lead into anannular chamber, E, with which latter communicates a series oflongitudinal branch channels, F, located comparatively near theperiphery of the casting, by which arrangement the tempering-current iscaused to enter at one end of V the axis of the roll and then beconducted al- A, radial tubes D, hollow ring E, and branches F, whichbranches are located comparatively near the periphery of the casting, asherein described.

In testimony whereof we affix our signatures in presence of twowitnesses.

THOMA S REED. JEREMIAH HOLLOWAY.

Witnesses:

JAMns H. LAYMAN, SAML. S. CARPENTER.

